Incomplete answer: ANSWER, one of groups sponsoring recent antiwar marches, seems to be associated with an old, hard left organization -- the Workers World Party (WWP) -- that supports various odious Communist and anti-American dictatorships. The issue is well-ventilated by Instapundit, David Corn, Lileks, and Michael Kelly (in his recent column, "Marching with Stalinists"). The WWP's role reflects badly on the marchers. On the other hand, I remember that during the Vietnam War, the biggest antiwar marches were organized by Trotskyists. That didn't automatically make the marches wrong, or make the war a wise use of American power. The people who showed up on the Mall to protest against Vietnam weren't Trotskysists and they didn't become Trotskyists -- and everyone knew that. The Trots just did the work, while they diluted their message to attract a big mainstream crowd. In the end, the mainstream anti-war marchers were using them, rather than the other way around. Similarly, if millions of American one day join ANSWER's demos, that won't mean they've become Stalinist cadres. It will mean the Iraq war has serious opposition. ... [What if the organizers were Nazis or the Klan?-ed. I'd feel different. So sue me.]